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Factory Navigation System Wont Work Theftlock..

Cvalencia10

By Cvalencia10
in Audio, Electronics & Software

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Cvalencia10 New Member

Cvalencia10

Posted
Posted

hello i have a 2005 GMC Sierra and i replaced the factory single cd and cassette player with a factory navigation system that came off a totaled 05 gmc denali and the navigation system will turn on and say GMC sound provided by bose but then the screen will flash and then just say theft lock activated and none of the buttons will work besides the eject button.. any help on how to unlock it.?? any help would be greatly appreciated.. thanks guys

balcharado Enthusiast

balcharado

Posted
Posted

i am on your boat. i have bought a navigation head unit off ebay and i got it from a tahoe. i was told that it wouldnt work if i got it from a denali or escalade. your best bet is to bring it to a dealer ad they got to reprogram the head unit for your vin.

 

well i am supose to get it in the mail today and we will see what hapens!! i got a buddie that works at a local dealer, he said he would take care of me. another guy i know did the same thing, he wen to the dealer and paid $40 bucks to make it work.

tjferris Enthusiast

tjferris

Posted
Posted
hello i have a 2005 GMC Sierra and i replaced the factory single cd and cassette player with a factory navigation system that came off a totaled 05 gmc denali and the navigation system will turn on and say GMC sound provided by bose but then the screen will flash and then just say theft lock activated and none of the buttons will work besides the eject button.. any help on how to unlock it.?? any help would be greatly appreciated.. thanks guys

what is the model number of you head unit?? I'm sorry to say that if the head unit came out of a denali, and your puting it in a sierra it will most likley not work even if you have it unlocked. Look in your glove box do you have RPO code Y91 or Y92? If not the radio from the denali won't function. The denali is set up with a lux bose amp from the factory and there are actually different versions of the nav radio. The LUX version (denali escalade) and the non Lux (tahoe, silverado, sierra) EVEN if you have factory bose speakers if it don't have the Y91 or Y92 option you have the wrong amp.

here are the gm part numbers for the lux and non lux radios, let me know what number you have

 

Newest revision LUX TNR-------15800001

Second Revision LUX TNR-------15230099

First Revision LUX TNR---------10377531

 

Newest revision non-lux TNR-----15800000

second Revision non-lux TNR---10379287

First Revision non-lux TNR-------10377287

Alt. Revision non-lux TNR---------15120706

 

and to answer your question, if your sierra does have the Y91 code, all you need to do is take it to the dealer, and have a tech with a techII programmer reprogram the radio with your vin number and everything should function. If the dealer tells you they can't do it, go to another dealer, or pm me I'll dig up the instruction sheet and email it to you as to what process they need to follow with the TechII scanner.

 

If you don't have the Y91 code and you have one of the lux radios let me know if you want to sell it, I have a friend looking to do the same conversion I am in the process of with mine right now. Good Luck if you need any other help I have been reasearching this swap extensivly feel free to PM me

Firebaugh New Member

Firebaugh

Posted
Posted
hello i have a 2005 GMC Sierra and i replaced the factory single cd and cassette player with a factory navigation system that came off a totaled 05 gmc denali and the navigation system will turn on and say GMC sound provided by bose but then the screen will flash and then just say theft lock activated and none of the buttons will work besides the eject button.. any help on how to unlock it.?? any help would be greatly appreciated.. thanks guys

 

 

You can also go the after market route. I ran into a similair issue when looking for a nav unit but 10 dealers said they could not do it. So i bought a Kenwood 7120 with all the adapters my steering wheel controls work so does my rear seat radio and the factor XM antennna works with the new kenwood XM radio so there is not one mounted on my roof other than factory. Plus i have the Ipod connection bluetooth, built in Garmin nav. it is sweet.

  • 1 month later...
jai6698 New Member

jai6698

Posted
Posted

Hi I have a 2003 Chevy Avalanche I bought the lux navigation system, I plugged it in and everything works but the volume. You can't hear anything. Any suggestions. Thanks

05aggie05 Enthusiast

05aggie05

Posted
Posted

I already did this little upgrade in my 06. Really easy to do as long as you get the lux/non lux part correct. Once it is installed, as previously stated, a dealer can take off the theft lock in a couple minutes. They did mine for about 40 bucks.

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